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G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
G01D15/28—Holding means for recording surfaces; Guiding means for recording surfaces; Exchanging means for recording surfaces
G01D15/32—Holding means for recording surfaces; Guiding means for recording surfaces; Exchanging means for recording surfaces for circular charts
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Physics & Mathematics
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General Physics & Mathematics
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Agricultural Chemicals And Associated Chemicals
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